Archive For June, 2009

6 articles

Quit Bugging Me: Induction

Working on a customer problem once, we had an interesting phenomena.  Upgrading a system with a large VME cage and several boards, the customer replaced older processor boards with what were then "new" boards.  The old boards ran at (I think) 33 MHz, the new ones at more like 133MHz. The overall system included motor control functions and sensor feedback,…

Serial Intent

Howdy out there,I realize this is a blog that's supposed to be about real-time programming issues, and mostly I've posted about planetary and space based projects, with a few announcements about technology and news items.  Though these combine subjects near and dear to my heart (space, and VxWorks), these were mostly "interest stories", not solid real-time issues.  (It must be…

First Light, First Flight

Kepler Space Telescope recently had it's First Light images released!  Just how many stars do you think Kepler is watching every day and night?This star in the circle is TrES2, a star known to have a planet around it.  It's in a cluster of stars known as NGC6791.   Zooming out more,  here's an inverted-image of Kepler's entire field of…

Virtually… Not Yours

So with all this virtualization going on, one computer can run multiple copies of an OS (or multiple OSs), all acting like they own the whole computer. With only some fancy shim layer keeping them from corrupting themselves and everything else, what are the implications for security?  Security is an issue that has been raised more frequently as computers have…

Virtually Yours…

This morning we've made a couple of announcements that will hopefully surprise and delight the Real Time computing community.  Wind River is releasing two new products that have their base in  virtualization: Wind River's Hypervisor, and Wind River's MILS 2.0.  Both of these products introduce platform virtualization, used in different ways.   Wind River's implementations allow for a "floatilla" of…

Tolerating Delays

This may sound a bit funny, but in the space industry, we're constantly playing catch-up.  We're either looking at or for things that happened millions or hundreds of millions of years ago, sending rockets off to get to where something will have been just in time to take a picture of or bore a hole into it, or designing new…